Tell your doctor if you use anything else that makes you sleepy. Some examples are allergy medicine, narcotic pain medicine, and alcohol.

Do not eat high-protein foods while you are taking carbidopa.

Warnings While Using This Medicine:

Tell your doctor if you are pregnant or breastfeeding, or if you have kidney, liver, or lung disease, a stomach ulcer, diabetes, thyroid problems, growth problems, heart disease, low blood pressure, or a history of heart attack, melanoma, or mental or emotional problems.

This medicine may cause the following problems:

Increased risk for melanoma

Neuroleptic malignant syndrome (NMS)

Thoughts of hurting yourself, or suicidal thoughts

This medicine may make you dizzy or suddenly fall asleep. Do not drive or do anything that could be dangerous until you know how this medicine affects you.

Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.

Tell any doctor or dentist who treats you that you are taking this medicine. This medicine may affect the results of certain medical tests, including tests often used by people who have diabetes.

Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.

This medicine might cause your saliva, sweat, or urine to become dark red, brown, or black. This may stain clothing but is otherwise harmless.

Keep all medicine out of the reach of children. Never share your medicine with anyone.

Repetitive movements you cannot control (either new or worse than usual)

Severe anxiety or agitation

Vision problems, such as double or blurred vision

If you notice these less serious side effects, talk with your doctor:

Dry mouth, loss of appetite

Mild nausea, vomiting, diarrhea, constipation, or stomach pain

Warmth or redness in your face, neck, arms, or upper chest

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

Last Updated: 11/4/2014

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